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Science News Archive October 2022 - Page 23


Page 23 of 37

Oregon State, U.S. Dept. of Energy researchers take key step toward big gains in plastics recycling

Researchers have made a breakthrough in plastics recycling by developing a technology that can convert mixed plastics into biodegradable products, reducing the need for costly separations. The process uses chemical oxidation and biological processes to break down plastics into smaller building blocks that can be consumed by microorgani...

SourceOregon State University·JournalScience·TypeExperimental study·DateOct 13, 2022

Current FDA oversight of vaping industry likely to have minimal impact

The FDA's warning letters issued in 2020 and 2021 revealed that the regulator is failing to target leading tobacco companies and products most popular among young people. Over 90% of warnings were sent to small online retailers, while flavoured refillable e-cigarette liquids accounted for over 90% of the products cited.

SourceBMJ Group·JournalTobacco Control·TypeData/statistical analysis·DateOct 13, 2022

New study finds distinct brain networks associated with risk and resilience in depression

A new study has identified two distinct brain networks associated with risk and resilience in depression. The salience network is linked to increased depression symptoms, while the default mode network is linked to decreased depression symptoms. These findings may lead to new treatments for depression using neuromodulation therapies.

SourceUniversity of Iowa Health Care·JournalBrain·TypeImaging analysis·DateOct 13, 2022

Heaviest element yet detected in an exoplanet atmosphere

Astronomers have discovered barium in the upper layers of ultra-hot Jupiters WASP-76 b and WASP-121 b, raising questions about these planets' atmospheres. The detection challenges scientists' understanding of heavy elements' behavior in exoplanet environments.

SourceESO·JournalAstronomy and Astrophysics·DateOct 13, 2022

New insights into how serotonin regulates behavior

New research by Frank Schroeder's team reveals two parallel biosynthetic pathways for serotonin production in C. elegans, challenging the long-held assumption that serotonin is made and quickly broken down. The findings suggest new therapeutic targets for treating anxiety, depression, and eating disorders.

SourceBoyce Thompson Institute·JournalNature Chemical Biology·TypeExperimental study·DateOct 13, 2022

Study reveals manual cleaning of medical instruments exposes staff and surrounding environment to potentially contaminated fluids

A new study published in AJIC shows that manual cleaning of reusable medical instruments generates substantial splash, exposing processing personnel and surrounding environment to potentially contaminated fluids. The study emphasizes the importance of engineering controls and appropriate PPE use to reduce contamination risks.

SourceAssociation for Professionals in Infection Control·JournalAmerican Journal of Infection Control·TypeExperimental study·DateOct 13, 2022

CityU chemists boost eco-friendly battery performance using catalysts with unconventional phase nanostructures

Researchers have discovered an innovative way to enhance the energy efficiency of metal-carbon dioxide batteries by introducing unconventional phase nanomaterials as catalysts. The novel design boosts battery energy efficiency up to 83.8%, contributing to carbon-neutral goals.

SourceCity University of Hong Kong·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 13, 2022

Unvaccinated adult cancer patients with COVID seven times more likely to die from any cause than comparable patients without COVID infection

A recent study published in JMIR Cancer found that unvaccinated adult cancer patients with COVID-19 were seven times more likely to die from any cause of death compared to those without the infection. The study, conducted by researchers at Regenstrief Institute, analyzed data on adult cancer patients diagnosed between 2019 and 2020.

SourceRegenstrief Institute·JournalJMIR Cancer·DateOct 13, 2022

CityAccessMap: Addressing urban inequalities with open-source data

The CityAccessMap tool assesses urban infrastructure distribution and identifies areas for improvement, helping policymakers address socio-economic disparities. Disadvantaged communities face lower access to urban services, which can hinder social mobility and exacerbate inequalities.

SourceDelft University of Technology·JournalEnvironment and Planning B Urban Analytics and City Science·TypeData/statistical analysis·DateOct 13, 2022

Two-stage chemical and bioconversion approach turns mixed plastic waste into valuable chemical products

Researchers develop two-stage approach converting mixed plastic waste into polyhydroxyalkanoates, a family of bioplastics suitable for medical materials. The hybrid process combines metal ion-promoted oxidation and bioconversion via genetically modified soil bacterium, enabling efficient recycling of commonly used plastics.

HKU-Harvard physicists predict the novel entangled states on programmable quantum simulators

Researchers from HKU and Harvard University have developed a new triangular lattice model and sweeping cluster algorithm to simulate Rydberg arrays. Their simulations reveal highly entangled Z2 quantum spin liquids with large parameter regimes, providing valuable insights for future experiments.

SourceThe University of Hong Kong·JournalNature Communications·TypeComputational simulation/modeling·DateOct 13, 2022

How does social behavior lead to clusters of vaccine hesitancy?

Researchers created theoretical models to explain geographical clustering of vaccine hesitancy, attributing it to both social selection and social influence. The models found that these two processes independently generate clusters of high hesitancy, with social selection playing a key role when societies trust propaganda.

SourcePLOS·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateOct 13, 2022

Risk of severe breakthrough COVID-19 infection is higher for people with HIV with moderately low CD4 cell counts

Research suggests people with HIV and CD4 counts lower than 350 cells per microliter are at increased risk of severe breakthrough COVID-19 infections. The study's findings support the CDC's recommendations for additional vaccine dosing and risk-reduction measures for these individuals.

SourceJohns Hopkins Bloomberg School of Public Health·JournalJAMA Network Open·TypeData/statistical analysis·DateOct 13, 2022

Fourteen per cent decrease in live births in Europe nine months after the start of the COVID-19 pandemic and first lockdowns

A 14% decrease in live births was observed in Europe nine months after the start of the COVID-19 pandemic and first lockdowns. The decline may be linked to lockdowns rather than COVID-19 infection, with countries experiencing longer lockdowns having lower birth rates.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·TypeObservational study·DateOct 13, 2022

Statistical oversight could explain inconsistencies in nutritional research

A new study from the University of Leeds reveals that standard statistical approaches can produce inconsistent results in nutritional research. The researchers identified a problem with controlling for total energy intake and overall diet, which can lead to dramatic changes in interpretation of results.

SourceUniversity of Leeds·JournalAmerican Journal of Clinical Nutrition·TypeData/statistical analysis·DateOct 13, 2022

Can shifting social norms help mitigate climate change?

Research suggests that social norms can be harnessed to bring about collective climate action and policy change, but requires deep contextual knowledge to be used effectively. Social norm interventions aim to increase adoption of sustainable behaviors, while social-tipping interventions disrupt unsustainable norms.

SourceAssociation for Psychological Science·JournalPsychological Science in the Public Interest·TypeLiterature review·DateOct 13, 2022

Yes, we can!

A study by physicists Fariba Karimi and her team has confirmed that women are underrepresented in physics, but found that the gender gap is largely due to a first-mover advantage enjoyed by men. The research suggests that women face higher entry barriers and structural inequalities, leading to differences in citation recognition.

SourceComplexity Science Hub·JournalCommunications Physics·TypeData/statistical analysis·DateOct 13, 2022

Popular herbicide weakens bumblebees’ color vision

A study by Finnish researchers found that exposure to the herbicide glyphosate impairs bumblebees' fine color vision, affecting their ability to learn and remember connections between colors and tastes. This weakened color vision can severely impact bumblebees' foraging and nesting success.

SourceUniversity of Turku·JournalScience of The Total Environment·DateOct 13, 2022

Accurately tracking how plastic biodegrades

Researchers at ETH Zurich develop a new method to track plastic biodegradation in soil, using stable carbon isotopes to demonstrate complete mass balances. The study finds that about two-thirds of the added polymer carbon is converted into CO2, while one-third remains in the soil, with some being incorporated into microbial biomass.

SourceETH Zurich·JournalNature Communications·TypeExperimental study·DateOct 13, 2022

Kidney health in adult life begins in the womb, Monash University researchers discover

Researchers found that human kidneys with more blood filters (glomeruli) contained more podocytes per filter. This means that people with more glomeruli not only have more units of podocytes overall, but these cells are more concentrated in each filter. Early discoveries suggest expectant mothers can reduce their babies' future kidney ...

SourceMonash University·JournalKidney International·TypeExperimental study·DateOct 13, 2022

Revealing the mysteries of the universe under the skin of an atomic nucleus

A breakthrough computer model from Chalmers University of Technology reveals the properties of an atomic nucleus, providing insights into the strong force that governs neutron star behavior. The model predicts a surprisingly thin neutron skin, which could lead to increased understanding of heavy element creation in neutron stars.

SourceChalmers University of Technology·JournalNature Physics·TypeComputational simulation/modeling·DateOct 12, 2022

Americans harmed by COVID-19 more likely to advocate for equality

A new study from Washington University in St. Louis found that individuals who experienced personal harm during the COVID-19 pandemic were more likely to support and advocate for equality, particularly those who contracted COVID-19 or lost their jobs. This shift in attitudes was attributed to a greater understanding of structural facto...

SourceWashington University in St. Louis·JournalJournal of Experimental Social Psychology·TypeData/statistical analysis·DateOct 12, 2022

Dinosaur “mummies” might not be as unusual as we think

Researchers propose a new explanation for how dinosaur mummies might form, suggesting desiccation and deflation as a common pathway. This process is also observed in modern animal carcasses, revealing that rare fossils may not be as unusual as previously thought.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateOct 12, 2022